PLATE CXXI. 



Phylloxera punctata. (Page 45.) 



Fig. 1. — Queen Aphis, the produce of the single 

 egg laid by the true female. This insect has just 

 passed a pseudovum which she is ranging in an inner 

 circle by means of her blunt ovipositor. The corru- 

 gated state of the egg envelopes shows the forward 

 condition of the enclosed embryos. 



Fig. 2. — A larval form which has subsequently 

 hatched from one of these eggs. 



Fig. 3. — Upwards of 70 pseudova, showing the 

 manner in which the eggs are disposed under an oak 

 leaf in concentric circles. The larva of a small 

 Myina is represented devouring these eggs. 



Fig. 4. — The imago, showing the pseudova within. 

 This insect shows no characteristic frontal tubercles. 

 Late in the autumn the second brood of alate females 

 occur, and these contain eggs of different sizes, dis- 

 closing the true males and the females. 



